Trical schematic (table 2.a) – Rockwell Automation 2364E Non-Regenerative DC Bus Supply Unit (NRU) User Manual

Page 28

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Publication 2364E-5.01 April 2002

2-4

Your 180A DC NRU (Current Code A)

Table 2.A: 180A DC NRU Symbol-to-Component Cross Reference

AC 3-Phase Input Voltage

Symbol

Description

Option

230V AC

380V AC

460V AC

575V AC

AM1

Ammeter monitoring L1

200A

C11

Bridge suppressor capacitor

3 uF, 2000V

CH11

DC choke

611 uH

CR1

Phase-loss relay

CR2

Fault relay

CT1, CT3

Current transformer

200:5

D1 - 6

Diodes

450A,1800V AC

D11

Bridge suppressor diode

60A, 1700V

EA1

Powermonitor II

EA2

Bus indicator PCB

EA2F1 - 2

Bus indicator PCB fuses

1A, 1000V, HVR, 1-3/32" diameter, 3" length, 500AIC

EA3

AC line RC suppressor PCB

EA5

Air flow sensor PCB

F1 - 3

Incoming 3-phase, line fuses

250A, 170M

F4, F6

Primary fuse for a 1 kVA control
transformer

6.25A, KLDR

4A, KLDR

3A, KLDR

3A, KLDR

Primary fuse for a 2 kVA control
transformer

12A, KLDR

8A, KLDR

6.25A, KLDR

5A, KLDR

Primary fuse for a 5 kVA control
transformer

30A, KLDR

17.5A, KLDR

15A, KLDR

12A, KLDR

F7

NRU control power fuse

2A, KLDR

F8

Control bus fuse for a 1 kVA
control transformer

6A, KLDR

Control bus fuse for a 2 kVA
control transformer

15A, KLDR

Control bus fuse for a 5 kVA
control transformer

35A, FRN

F11 - 13

Phase-loss fuses

1A, KLDR

F14 - 16

RC suppressor fuses

25A, KTKR

HS1 - 2

Bridge heatsink

MCP1

Motor circuit protector

250A, J-frame

MTR1

Bridge fan

560 CFM

MTR1-C

Bridge fan capacitor

10 uF capacitor

PL1

DC-Bus-Energized pilot light

24V AC/VDC, red, 800MR

PL2

Unit-Not-Faulted pilot light

120V AC, amber, 800MR

PS1

Air flow sensor power supply

24V DC, 0.5A

PT1

Control power transformer

A 1 kVA control transformer is standard, 2 kVA and 5 kVA control

transformers are available as options. This transformer has multiple

taps to accommodate 230, 380, 460, 575V AC primary voltages.

R11

Bridge suppressor resistor

2.2 ohm, 100 W

R12

Bridge suppressor resistor

100 ohm, 100 W

S1 - 2

Heatsink thermoswitch

210 °F

S5

Air flow switch

SP1 - 3

Line-to-line MOVs

360 J, 275V AC

460 J, 320V AC

460 J, 320V AC

550 J, 385V AC

SP4

Neutral-to-ground MOV

600 J, 550V AC

760 J, 680V AC

760 J, 680V AC

760 J, 680V AC

VM1

DC bus voltmeter

750V DC

750V DC

1000V DC

1000V DC

VM2

Ground fault detector

Components marked as being options are part of NRU standard options. Not all NRUs will have these components.

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